Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 28 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.498 × 498 =
2. 2.398 × 397 =
3. 3.494 × 493 =
4. 4.57 × 56 =
5. 5.598 × 594 =
6. 6.54 × 52 =
7. 7.61 × 64 =
8. 8.592 × 595 =
9. 9.308 × 303 =
10. 10.78 × 79 =
11. 11.208 × 202 =
12. 12.47 × 46 =
13. 13.594 × 596 =
14. 14.606 × 607 =
15. 15.31 × 33 =
16. 16.59 × 57 =
17. 17.69 × 66 =
18. 18.21 × 24 =
19. 19.19 × 19 =
20. 20.403 × 402 =
21. 21.394 × 398 =
22. 22.22 × 21 =
23. 23.404 × 401 =
24. 24.23 × 21 =
25. 25.63 × 63 =
26. 26.601 × 609 =
27. 27.401 × 403 =
28. 28.199 × 197 =
29. 29.61 × 64 =
30. 30.77 × 77 =
31. 31.298 × 291 =
32. 32.205 × 202 =
33. 33.191 × 191 =
34. 34.17 × 16 =
35. 35.601 × 603 =
36. 36.58 × 56 =
37. 37.503 × 507 =
38. 38.601 × 607 =
39. 39.72 × 72 =
40. 40.497 × 495 =

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